CI: Add PHP 8.3 #55

	name: tests

	on:
	push:
	pull_request:

	jobs:
	linux_tests:
	runs-on: ubuntu-latest
	if: "!contains(github.event.head_commit.message, '[skip ci]') && !contains(github.event.head_commit.message, '[ci skip]')"

	strategy:
	fail-fast: true
	matrix:
	php: ["5.6", "7.0", "7.1", "7.2", "7.3", "7.4", "8.0", "8.1", "8.2", "8.3"]

	name: PHP ${{ matrix.php }}

	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}
	extensions: mbstring, posix
	coverage: none

	- name: Setup problem matchers
	run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"

	- name: Setup tests for PHP < 7.4
	if: matrix.php < 7.4
	run: \|
	composer require --dev 'phpunit/phpunit:^4.8.36 \|\| ^5.7.21 \|\| ^6 \|\| ^7' --no-update
	sed -i 's/: void//g' tests/*.php

	- name: Install dependencies
	run: composer install --prefer-dist --no-interaction --no-progress

	- name: Install GnuPG v1 (GnuPG v2 does not work with Github Actions)
	run: sudo apt-get install -y gnupg1

	- name: Execute tests
	run: TESTS_GPG_BINARY=/usr/bin/gpg1 vendor/bin/phpunit --stop-on-error tests

	- name: Upload artifacts
	uses: actions/upload-artifact@master
	if: failure()
	with:
	name: Logs
	path: tests/debug.log

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